/*
package juc;

public class TestProductorAndConsumer {
    public static void main(String[] args) {

        Clerk clerk = new Clerk();
        Productor productor = new Productor(clerk);
        Consumer consumer = new Consumer(clerk);

        new Thread(productor, "生产者A").start();
        new Thread(consumer,"消费者B").start();
        new Thread(productor, "生产者C").start();
        new Thread(consumer,"消费者D").start();
    }

}
class Clerk {
    private int product = 0;
    //进货
    public synchronized void get() {
        while (product >= 1) { //为了解决虚假唤醒问题，应该总是使用在循环中
            System.out.println("货物已满");
            try {
                this.wait();
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
        ++product;
        System.out.println(Thread.currentThread().getName() + ": " + product);
        this.notifyAll();


    }

    //售货
    public synchronized void sell() {
        while (product <= 0) {
            System.out.println("货物已空");
            try {
                this.wait();
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
        --product;
        System.out.println(Thread.currentThread().getName() + ": " + product);
        this.notifyAll();


    }
}
class Productor implements Runnable {

    private Clerk clerk;

    public Productor(Clerk clerk) {
        this.clerk = clerk;
    }

    @Override
    public void run() {
        for (int i = 0; i < 20 ; i++) {
            clerk.get();
        }

    }
}

class Consumer implements Runnable {

    private Clerk clerk;

    public Consumer(Clerk clerk) {
        this.clerk = clerk;
    }

    @Override
    public void run() {
        for (int i = 0; i < 20; i++) {
            clerk.sell();
        }

    }
}*/
